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Finding the Fourth Proportional to 400,322.88, 600,485.36 and 147,493.82

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Solution

The fourth proportional to 400,322.88, 600,485.36 and 147,493.82 is: 221,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,322.88 : 600,485.36 = 147,493.82 : x
  2. Step 2: Convert to fraction form
    400,322.88/600,485.36 = 147,493.82/x
  3. Step 3: Cross multiply
    400,322.88x = 600,485.36 × 147,493.82
  4. Step 4: Simplify right side
    400,322.88x = 88,567,875,860.58
  5. Step 5: Solve for x
    x = 88,567,875,860.58/400,322.88
  6. Step 6: Final answer
    x = 221,241.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.